Solar Weather Station, Wireless Temperature Station, With Solar Technology, Features Both Indoor & Outdoor Temperatures, Plus Indoor Humidity, Features Wall Mount Or Detachable Table Stand, Solar Panels Retain Power High Efficiency Solar Panels Maintains A Full Charge Even In Minimal Light, Included Wireless Outdoor Sensor Has A Transmission Range Of Up To 200' & Will Read Down To -39.2 Degree Fahrenheit, 1 Button Operation Shows Your Minimum/Maximum Recorded Values & Can Work On Regular Alkaline Battery Power As Well With A Flip Of A Switch, Includes Rechargeable Batteries For Both Display & Sensor.